Boots – shoes – and leggings
Patent
1988-04-18
1990-06-12
Lastova, John R.
Boots, shoes, and leggings
36416701, 364174, 318616, G06F 1500, H02P 500
Patent
active
049338340
ABSTRACT:
A control system has a detecting block for obtaining a detected signal corresponding to a controlled variable of a controlled system, and a controlling block for supplying the controlled system with a control signal according to the detected signal. The controlling block includes an error signal producing block for producing an error signal from the detected signal at intervals of a detecting period of time, a memorizing block for storing a plurality of memorized values corresponding to the error signal, and a control signal producing block for producing the control signal by mixing the error signal with one or more of the memorized values. The memorizing block renews the memorized values sequentially and periodically at intervals of a renewing cycle period of time proportional to the detecting period, each with a mixed value computed from the error signal and one or more of the memorized values having been renewed at intervals of L renewing cycle periods, where L is an integer at least equal to 2. The controlling block also includes an operation selecting block for selecting a control operation, and a position detecting block for detecting a physical movement of the controlled system. The position detecting block obtains a stored position of the memorized value corresponding to a physical position of the controlled system so as to utilize the memorized values promptly and correctly when the operation selecting block selects the control operation using the memorizing block.
REFERENCES:
patent: 4535277 (1985-08-01), Kurakake
patent: 4638421 (1987-01-01), Kimizuka et al.
patent: 4701839 (1987-10-01), McNally et al.
patent: 4713596 (1987-12-01), Bose
patent: 4755727 (1988-07-01), Gotou
patent: 4807153 (1989-02-01), Onaga et al.
patent: 4821168 (1989-04-01), Gotou
Gotou Makoto
Ueda Eiji
Lastova John R.
Matsushita Electric - Industrial Co., Ltd.
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